✅ Official notice on file. Columbia University filed this data breach notice with the California Attorney General on Aug 7, 2025. Compare it with the letter you received: the official copy is linked below.
Columbia University reported a data breach. The information involved includes Social Security number, date of birth, medical information.
Key facts
| Data exposed | Social Security number, Date of birth, Medical information |
|---|---|
| Reported to California AG | Aug 7, 2025 |
| Company helpline | 1-866-819-7006 |
Free credit monitoring
Columbia University is offering Kroll at no cost to people who received the letter. Enroll at enroll.krollmonitoring.com using the activation code printed on your letter.
What to do now
- Freeze your credit for free at Equifax, Experian and TransUnion, and request an IRS Identity Protection PIN at irs.gov to block fraudulent tax returns in your name.
- Your date of birth is often used to verify identity: add a fraud alert to your credit file so lenders must confirm it is really you.
- Review the Explanation of Benefits statements from your insurer for services you never received.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Columbia University helpline at 1-866-819-7006 if you have questions about your letter.
Other recent data breaches
- Inner City Education Foundation data breach
- Nishiyamato Academy data breach
- Merced Union High School District data breach
- Lincoln Technical Institute data breach
- Monmouth University data breach
Source: notification letter and filing submitted by Columbia University to the California Attorney General. BreachLetter is not affiliated with Columbia University. Details extracted from the official letter; always follow the instructions in your own copy.